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FFHB - Chapter 4

True/False
Indicate whether the sentence or statement is true or false.
 

 1. 

The definition of a British Thermal Unit (BTU) is a measurement of heat that describes the amount of heat required to raise 1 liter of water 1° F.
 

 2. 

Ignition is the point at which the need for outside heat application ceases and the ability for the material to sustain combustion comes from the heat generation of the material itself.
 

 3. 

A concentration of a gas or liquid is not too rich or too lean to ignite with force.
 

 4. 

Volume is the mass per unit volume of a substance under specified conditions of pressure and temperature.
 

 5. 

Organic is a substance derived from living organisms.
 

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 6. 

A chemical reaction that releases heat is a(n) ____.
a.
inorganic reaction
d.
endothermic reaction
b.
exothermic reaction
e.
organic reaction
c.
hydrocarbon reaction
 

 7. 

Friction causes heat that can reach levels hot enough to ignite surrounding combustible material. Friction is an example of a(n) ____ source of heat.
a.
chemical
d.
electrical
b.
oxidizing
e.
nuclear
c.
mechanical
 

 8. 

In an atmosphere where oxygen is less than ____ percent, there is not enough oxygen to support combustion.
a.
12
d.
21
b.
14
e.
23
c.
20
 

 9. 

A hydrocarbon is a compound that is made up of at least two elements, ____ and ____.
a.
oxidizer, carbon
c.
quartz, silicone
b.
hydrogen, carbon
d.
hydrogen, oxygen
 

 10. 

____ is a major contributor to flashover.
a.
Conduction
c.
Convection
b.
Radiation
d.
Rollover
 



 
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